The Jewel Store Job
The maximum take for the mission is $4,946,153 if the player smashes all 20 displays and chooses a good gunman. $2,500,000 will then go to Martin Madrazo while the rest gets split between the crew.
The Merryweather Heist
No payoff - Reason is spoiler
The Paleto Score
The crew manage to get around $8,016,020 during this heist.
The Buraeu Raid
The Big Score
Choosing the obvious approach will yield around $31,000,000 per character, as long as you choose a good driver to pilot the helicopter, otherwise half the score will be lost. Taking this approach is far more difficult.
Choosing the subtle approach will yield around $24,000,000 per character. It is important to have a good hacker; lesser skilled hackers will cause lag in the traffic lights making this part of the heist more difficult.
On a side note, I recommended only doing the first Lester mission for now. Reason being, these missions biggest payoff is in taking advantage of your advance knowledge of the repercussions these missions have on the stock market. Doing so is some of the best money in the game, and logic dictates that the more cash you have on hand to invest before rigging the market, the higher the dividends you will reap... Remember -- Always Buy low, Sell high
http://www.ign.com/wikis/gta-5/Blitz_Play (solarosh recommendation)